I have so many opinions on this topic and all of them have to do with the citizen being armed to teeth. I would like to point out one of the less talked about issues with gun ownership in the US... The amount of guns distributed amongst the population is an absolute deterrent for any other group of people trying to invade the continental land mass. It was what held Japan at bay from planning a land invasion of the US during WW2. The Emperor wanted a manned land invasion but his generals countered this idea by saying" There is a gun behind every blade of grass. Most people fail to recognize this faucet also.
RE: Protection of our second amendment